Mitsubishi Electric MSZ-EF18VE2B-E1 User manual

1
INDOOR UNIT
No. OBH589
REVISED EDITION-G
OBH589 REVISED EDITION-F is void.
Models
MSZ-EF18VEW/B/S -E1 MSZ-EF22VEW/B/S -E1 MSZ-EF25VEW/B/S -E1
MSZ-EF35VEW/B/S -E1 MSZ-EF42VEW/B/S -E1 MSZ-EF50VEW/B/S -E1
MSZ-EF18VE2W/B/S -E1 MSZ-EF22VE2W/B/S -E1 MSZ-EF25VE2W/B/S -E1
MSZ-EF35VE2W/B/S -E1 MSZ-EF42VE2W/B/S -E1 MSZ-EF50VE2W/B/S -E1
MSZ-EF18VE2W/B/S -ER1 MSZ-EF22VE2W/B/S -ER1 MSZ-EF25VE2W/B/S -ER1
MSZ-EF35VE2W/B/S -ER1 MSZ-EF42VE2W/B/S -ER1 MSZ-EF50VE2W/B/S -ER1
MSZ-EF18VE3W/B/S -E1 , E2 MSZ-EF22VE3W/B/S -E1 , E2 MSZ-EF25VE3W/B/S -E1 , E2
MSZ-EF35VE3W/B/S -E1 , E2 MSZ-EF42VE3W/B/S -E1 , E2 MSZ-EF50VE3W/B/S -E1 , E2
MSZ-EF22VE3W/B/S -ER1 , ER2 MSZ-EF25VE3W/B/S -ER1 , ER2
MSZ-EF35VE3W/B/S -ER1 , ER2 MSZ-EF42VE3W/B/S -ER1 , ER2 MSZ-EF50VE3W/B/S -ER1 , ER2
MSZ-EF∙VEW
MSZ-EF∙VEB
MSZ-EF∙VES
PARTS CATALOG (OBB589)
CONTENTS
1. TECHNICAL CHANGES ······························3
2. PART NAMES AND FUNCTIONS··················6
3. SPECIFICATION ········································9
4. NOISE CRITERIA CURVES························ 11
5. OUTLINES AND DIMENSIONS··················· 13
6. WIRING DIAGRAM··································· 16
7. REFRIGERANT SYSTEM DIAGRAM ··········· 18
8. SERVICE FUNCTIONS······························ 19
9. MICROPROCESSOR CONTROL ················ 21
10. TROUBLESHOOTING ······························· 29
11. DISASSEMBLY INSTRUCTIONS················· 43
MXZ-D∙VA Series (OBH626)
MXZ-8B Series (OCH480)
Outdoor unit service manual
MUZ-EF∙VE(H) Series (OBH590)
MXZ-C∙VA Series (OB584)
SERVICE MANUAL
Revision G:
• 5. OUTLINES AND DIMENTIONS has been
modified.
• Some descriptions have been modified.

2
<Preparation before the repair service>
Prepare the proper tools.
Prepare the proper protectors.
Provide adequate ventilation.
After stopping the operation of the air conditioner, turn off the power-supply breaker and remove the power plug.
Discharge the capacitor before the work involving the electric parts.
<Precautions during the repair service>
Do not perform the work involving the electric parts with wet hands.
Do not pour water into the electric parts.
Do not touch the refrigerant.
Do not touch the hot or cold areas in the refrigeration cycle.
When the repair or the inspection of the circuit needs to be done without turning off the power, exercise great caution not to
touch the live parts.
Use the specified refrigerant only
Never use any refrigerant other than that specified.
Doing so may cause a burst, an explosion, or fire when the unit is being used, serviced, or disposed of.
Correct refrigerant is specified in the manuals and on the spec labels provided with our products.
We will not be held responsible for mechanical failure, system malfunction, unit breakdown or accidents caused by
failure to follow the instructions.
Revision A:
• Airflow in the Silent mode in the cooling operation has been changed.
• "TROUBLESHOOTING" has been corrected (10-2, 10-4).
Revision B:
• MSZ-EF18VEW - E1 , MSZ-EF18VEB - E1 and MSZ-EF18VES - E1 have been added.
Revision C:
• MSZ-EF18/22/25/35/42/50VE2W - E1 , ER1 , MSZ-EF18/22/25/35/42/50VE2B - E1 , ER1 and MSZ-EF18/22/25/35/42/50VE2S
- E1 , ER1 have been added.
Revision D:
• The descriptions of the dimensions for MSZ-EF18/22/25/35/42/50VE2W - E1 , ER1 , MSZ-EF18/22/25/35/42/50VE2B - E1 ,
ER1 and MSZ-EF18/22/25/35/42/50VE2S - E1 , ER1 have been modified.
Revision E:
• MSZ-EF18/22/25/35/42/50VE3W -
E1
, MSZ-EF18/22/25/35/42/50VE3B -
E1
, MSZ-EF18/22/25/35/42/50VE3S -
E1
, MSZ-
EF22/25/35/42/50VE3W -
ER1
, MSZ-EF22/25/35/42/50VE3B -
ER1
and MSZ-EF22/25/35/42/50VE3S -
ER1
have been added.
Revision F:
• MSZ-EF18/22/25/35/42/50VE3W - E2 , MSZ-EF22/25/35/42/50VE3W - ER2 , MSZ-EF18/22/25/35/42/50VE3B - E2 ,
MSZ-EF22/25/35/42/50VE3B - ER2 , MSZ-EF18/22/25/35/42/50VE3S - E2 and MSZ-EF22/25/35/42/50VE3S - ER2 have
been added.
Revision G:
• 5. OUTLINES AND DIMENTIONS has been modified.
• Some descriptions have been modified.
OBH589G

3
TECHNICAL CHANGES
1
MSZ-EF18VEW - E1 MSZ-EF22VEW - E1 MSZ-EF25VEW - E1
MSZ-EF35VEW - E1 MSZ-EF42VEW - E1 MSZ-EF50VEW - E1
MSZ-EF18VEB - E1 MSZ-EF22VEB - E1 MSZ-EF25VEB - E1
MSZ-EF35VEB - E1 MSZ-EF42VEB - E1 MSZ-EF50VEB - E1
MSZ-EF18VES - E1 MSZ-EF22VES - E1 MSZ-EF25VES - E1
MSZ-EF35VES - E1 MSZ-EF42VES - E1 MSZ-EF50VES - E1
1. New model
MSZ-EF18VEW - E1 MSZ-EF18VE2W - E1
MSZ-EF22VEW - E1 MSZ-EF22VE2W - E1
MSZ-EF25VEW - E1 MSZ-EF25VE2W - E1
MSZ-EF35VEW - E1 MSZ-EF35VE2W - E1
MSZ-EF42VEW - E1 MSZ-EF42VE2W - E1
MSZ-EF50VEW - E1 MSZ-EF50VE2W - E1
MSZ-EF18VEB - E1 MSZ-EF18VE2B - E1
MSZ-EF22VEB - E1 MSZ-EF22VE2B - E1
MSZ-EF25VEB - E1 MSZ-EF25VE2B - E1
MSZ-EF35VEB - E1 MSZ-EF35VE2B - E1
MSZ-EF42VEB - E1 MSZ-EF42VE2B - E1
MSZ-EF50VEB - E1 MSZ-EF50VE2B - E1
MSZ-EF18VES - E1 MSZ-EF18VE2S - E1
MSZ-EF22VES - E1 MSZ-EF22VE2S - E1
MSZ-EF25VES - E1 MSZ-EF25VE2S - E1
MSZ-EF35VES - E1 MSZ-EF35VE2S - E1
MSZ-EF42VES - E1 MSZ-EF42VE2S - E1
MSZ-EF50VES - E1 MSZ-EF50VE2S - E1
1. Front panel has been changed.
2. Panel assembly has been changed.
3. Remote controller has been changed.
MSZ-EF18VE2W - ER1 MSZ-EF22VE2W - ER1 MSZ-EF25VE2W - ER1
MSZ-EF35VE2W - ER1 MSZ-EF42VE2W - ER1 MSZ-EF50VE2W - ER1
MSZ-EF18VE2B - ER1 MSZ-EF22VE2B - ER1 MSZ-EF25VE2B - ER1
MSZ-EF35VE2B - ER1 MSZ-EF42VE2B - ER1 MSZ-EF50VE2B - ER1
MSZ-EF18VE2S - ER1 MSZ-EF22VE2S - ER1 MSZ-EF25VE2S - ER1
MSZ-EF35VE2S - ER1 MSZ-EF42VE2S - ER1 MSZ-EF50VE2S - ER1
1. New model
The following models are compatible with the outdoor units with low standby power control.
Connecting the following models to the MUZ-EF·VE(H) series outdoor units enables the low standby power control.
The following models may be connected to the MUZ-EF·VE(H) series after once connected to the MXZ series and operated,
for example because of relocation. In that case, the MUZ-EF·VE(H) series outdoor units will not operate without taking a step.
Follow the procedure "Deleting the memorized abnormal condition" described in 10-2.1.
OBH589G

4
MSZ-EF18VE2W - E1 MSZ-EF18VE3W - E1
MSZ-EF22VE2W - E1 MSZ-EF22VE3W - E1
MSZ-EF25VE2W - E1 MSZ-EF25VE3W - E1
MSZ-EF35VE2W - E1 MSZ-EF35VE3W - E1
MSZ-EF42VE2W - E1 MSZ-EF42VE3W - E1
MSZ-EF50VE2W - E1 MSZ-EF50VE3W - E1
MSZ-EF18VE2B - E1 MSZ-EF18VE3B - E1
MSZ-EF22VE2B - E1 MSZ-EF22VE3B - E1
MSZ-EF25VE2B - E1 MSZ-EF25VE3B - E1
MSZ-EF35VE2B - E1 MSZ-EF35VE3B - E1
MSZ-EF42VE2B - E1 MSZ-EF42VE3B - E1
MSZ-EF50VE2B - E1 MSZ-EF50VE3B - E1
MSZ-EF18VE2S - E1 MSZ-EF18VE3S - E1
MSZ-EF22VE2S - E1 MSZ-EF22VE3S - E1
MSZ-EF25VE2S - E1 MSZ-EF25VE3S - E1
MSZ-EF35VE2S - E1 MSZ-EF35VE3S - E1
MSZ-EF42VE2S - E1 MSZ-EF42VE3S - E1
MSZ-EF50VE2S - E1
MSZ-EF50VE3S - E1
1. Air filter has been changed.
2. Air cleaning filter has been changed.
MSZ-EF22VE2W - ER1 MSZ-EF22VE3W - ER1
MSZ-EF25VE2W - ER1 MSZ-EF25VE3W - ER1
MSZ-EF35VE2W - ER1 MSZ-EF35VE3W - ER1
MSZ-EF42VE2W - ER1 MSZ-EF42VE3W - ER1
MSZ-EF50VE2W - ER1 MSZ-EF50VE3W - ER1
MSZ-EF18VE2B - ER1 MSZ-EF18VE3B - ER1
MSZ-EF22VE2B - ER1 MSZ-EF22VE3B - ER1
MSZ-EF25VE2B - ER1 MSZ-EF25VE3B - ER1
MSZ-EF35VE2B - ER1 MSZ-EF35VE3B - ER1
MSZ-EF42VE2B - ER1 MSZ-EF42VE3B - ER1
MSZ-EF50VE2B - ER1 MSZ-EF50VE3B - ER1
MSZ-EF18VE2S - ER1 MSZ-EF18VE3S - ER1
MSZ-EF22VE2S - ER1 MSZ-EF22VE3S - ER1
MSZ-EF25VE2S - ER1 MSZ-EF25VE3S - ER1
MSZ-EF35VE2S - ER1 MSZ-EF35VE3S - ER1
MSZ-EF42VE2S - ER1 MSZ-EF42VE3S - ER1
MSZ-EF50VE2S - ER1 MSZ-EF50VE3S - ER1
1. Air filter has been changed.
2. Air cleaning filter has been changed.
OBH589G

5
MSZ-EF18VE3W - E1 MSZ-EF18VE3W - E2
MSZ-EF22VE3W - E1 MSZ-EF22VE3W - E2
MSZ-EF25VE3W - E1 MSZ-EF25VE3W - E2
MSZ-EF35VE3W - E1 MSZ-EF35VE3W - E2
MSZ-EF42VE3W - E1 MSZ-EF42VE3W - E2
MSZ-EF50VE3W - E1 MSZ-EF50VE3W - E2
MSZ-EF18VE3B - E1 MSZ-EF18VE3B - E2
MSZ-EF22VE3B - E1 MSZ-EF22VE3B - E2
MSZ-EF25VE3B - E1 MSZ-EF25VE3B - E2
MSZ-EF35VE3B - E1 MSZ-EF35VE3B - E2
MSZ-EF42VE3B - E1 MSZ-EF42VE3B - E2
MSZ-EF50VE3B - E1 MSZ-EF50VE3B - E2
MSZ-EF18VE3S - E1 MSZ-EF18VE3S - E2
MSZ-EF22VE3S - E1 MSZ-EF22VE3S - E2
MSZ-EF25VE3S - E1 MSZ-EF25VE3S - E2
MSZ-EF35VE3S - E1 MSZ-EF35VE3S - E2
MSZ-EF42VE3S - E1 MSZ-EF42VE3S - E2
MSZ-EF50VE3S - E1
MSZ-EF50VE3S - E2
MSZ-EF22VE3W - ER1 MSZ-EF22VE3W - ER2
MSZ-EF25VE3W - ER1 MSZ-EF25VE3W - ER2
MSZ-EF35VE3W - ER1 MSZ-EF35VE3W - ER2
MSZ-EF42VE3W - ER1 MSZ-EF42VE3W - ER2
MSZ-EF50VE3W - ER1 MSZ-EF50VE3W - ER2
MSZ-EF22VE3B - ER1 MSZ-EF22VE3B - ER2
MSZ-EF25VE3B - ER1 MSZ-EF25VE3B - ER2
MSZ-EF35VE3B - ER1 MSZ-EF35VE3B - ER2
MSZ-EF42VE3B - ER1 MSZ-EF42VE3B - ER2
MSZ-EF50VE3B - ER1 MSZ-EF50VE3B - ER2
MSZ-EF22VE3S - ER1 MSZ-EF22VE3S - ER2
MSZ-EF25VE3S - ER1 MSZ-EF25VE3S - ER2
MSZ-EF35VE3S - ER1 MSZ-EF35VE3S - ER2
MSZ-EF42VE3S - ER1 MSZ-EF42VE3S - ER2
MSZ-EF50VE3S - ER1 MSZ-EF50VE3S - ER2
1. These models came to be connected to the multi outdoor units using refrigerant R32.
OBH589G